규칙적으로 스크린 도어가 열고-닫히는 승강장에서의 열유동 특성 해석

초록

The percentage of electricity consumption for air conditioner in the subway station is more than 60%. The various R&D projects regarding the high efficiency of energy in the subway station are going on. It is assumed that PSD is regularly open and close which imitate the actual circumstances in subway platform. Then the temperature and flow is investigated in the lobby and platform. Shingumho station(The line # 5, Depth: 46m) has been selected as a simulation model. The ventilation mode is ordinary state and the cool air of 47,316m3/h is supplied and the returned air of 33,980m3/h is exhausted in the lobby and the cool air of 33,968m3/h is supplied and the returned air of 76,190m3/h is exhausted in the platform. The temperature of cool supplied air in the diffusers is 10℃. The numbers of ventilation diffuser are 94 and 222 in the lobby and in the platform, respectively. Total of 7.5 million grids were generated for this simulation. In order to enhance the efficiency of calculation, parallel processing by MPI is employed and Large Eddy Simulation method is adopted